Agilent Technologies’ 86100D DCA-X wide-bandwidth oscilloscope offers engineers the tools needed to characterize their high-speed digital designs easily and accurately. The scope is 100 percent backwards compatible with all previous DCA modules and completely code compatible with the 86100C. With future modules, the DCA-X will be able to support up to 16 measurement channels. Higher channel counts will enable electrical and optical engineers to test their parallel designs efficiently, and it offers higher throughput for manufacturing. The high analog bandwidth, low noise, and low jitter measurements offered by the DCA is asserted to help engineers see the true performance of their designs on signals from 50 Mb/s to more than 40 Gb/s. The modular DCA platform can be configured for optical, electrical, TDR/TDT, and S-parameter measurement capability. The 86100D DCA-X offers integrated de-embedding and embedding capability (using the 86100D-SIM InfiniiSim-DCA license); and usability enhancements, including graphical signal processing; dual user interfaces (FlexDCA -- a new customizable vector-based user interface for scope, eye and jitter measurements -- and DCA-J, the “classic” user interface); up to 64 simultaneous measurements; and new measurements, including data-dependent pulse-width shrinkage (DDPWS), uncorrelated jitter (UJ), pre- and de-emphasis measurements. Hardware includes vertical gain and offset controls for all channels and functions; user-defined multipurpose button and analog control knobs.